Home / 781,365.60-1,170,080.10-623,901.60

Finding the Fourth Proportional to 781,365.60, 1,170,080.10 and 623,901.60

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Solution

The fourth proportional to 781,365.60, 1,170,080.10 and 623,901.60 is: 934,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,365.60 : 1,170,080.10 = 623,901.60 : x
  2. Step 2: Convert to fraction form
    781,365.60/1,170,080.10 = 623,901.60/x
  3. Step 3: Cross multiply
    781,365.60x = 1,170,080.10 × 623,901.60
  4. Step 4: Simplify right side
    781,365.60x = 730,014,846,518.16
  5. Step 5: Solve for x
    x = 730,014,846,518.16/781,365.60
  6. Step 6: Final answer
    x = 934,280.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.